[Current anatomopathological aspects of differentiated thyroid cancers of follicular (vesicular) origin: value and necessity of a common language].

This article reviews the pathology and classification of differentiated thyroid carcinomas. Diagnostic criteria are reviewed. Follicular and papillary carcinomas and their variants are described. New entities are detailed. Atypical adenomas and difficult follicular diseases are discussed. The need for a consensual terminology is assessed.